Paper cutting machine



@m. 9 19354. G. c. BEIDLER PAPER CUTTING MACHINE Filed March 23, 1933 2 Sheets-Sheet l G. C. BEIDLER @cicn 9, H934 PAPER CUTTING MACHINE 2 Sheets-Sheet 2 Filed March 23, 1933 Patented Oct. 9, 1934 UNITED STATES PATENT OFFICE 1,976,156 PAPER CUTTING MACHINE George C. Beidler, Rochester, N. Y. Application March 23, 1933, Serial No. 662,337 10 Claims. (Cl. 164-43) This invention relates generally to cutting ma- Figure 4 illustrates a view of the parts shown chines and more particularly to paper cutters, in Fig. 3 but in different positions; a l and the invention has been developed with es- Figure 5 illustrates a perspective view of one pecial reference. to its use for cutting photoof the members by which the movable bladeis 5 graphic film such as.is-used in machines for carried; V

photographing drawings, writings and printed Figure 6 illustrates a view in elevation partly matter. in section of the mounting for the approximately It is an object of this invention to provide a stationary blade, the said blade being shown in cutter which economizes in space for installation section; 10 and operation, as compared with those cutters Figure 7 illustrates a detail view of a feeding 65 now employed in photographic recording mar adjusting means; h Figure 8 illustrates a sectional view on the line It is a further object of this invention to pro- 88 of Fig. 2; and vide novel means whereby a movable cutting Figure 9 illustrates a sectional view of the cut- 1 blade operates in conjunction with a substanting blades at the ends thereof opposite that to 79,

tially stationary blade, novel means being prowhich Fig. 8 is taken. vided for imparting motion to the first mentioned In these drawings, 10 and 11 denote the end blade whereby. it is operated in a restricted area members of the frame and they are substantially compared with known paper cutting instrumenduplicates, one being shown in elevation in Figs. talities. I 3 and 4. These frame members may be anchored 7' It is a still further object of this invention to in any suitable manneron a base, and it is the provide a film cutter which is associated with intention as one use of the invention to install it film drawing means, it being the intention of as a part of a photographing apparatus for the the inventor that the film cutting instrumenpurpose of drawing film from amagazine and cuttalities shall be mounted in associated relation ting the film after it has been drawn through an 80 to a spool on which film is wound and from which exposing chamber and discharged therefrom, an it is drawn and moved between the blades of example of such machine being disclosed in apthe cutter in order that through manipulation plicants patent for photographic developing apor actuation of the cutting mechanism the film paratus No. 1,859,258 of May 17, 1932. will be cut. 7 The frame members have bearings of appropri- 95 It is furthermore an object of this invention ate construction, the bearings for one of the rolls to provide means for mounting the movable blade 12 being stationary and the bearing 13 for a movwhereby it. will swing in an arc and in operative able roll 14 being adjustable with relation to the relation to the approximately stationary blade stationary bearing, these movable bearingsbe- 5 and in a manner that a draw out of the movable ing installed, one in each of the frame members. 0 blade will result. The bearing 13 has a beveled surface 15 engaged 'With the foregoing and other objects in view, by a Sc w 16th eaded vertically, in this instance, the invention consists in the details of construcin the member, d by manipulating the tion, and in the arrangement and Combination screw the pressureon the movablebear'mg may of parts be hereinafter more fully set forth be increased or diminished. It is shown in the and claimed drawings that the screw has a lock nut 17 engag In describing the invention in detail, reference ing it which is intended to hold the screw against t will be had to the accompanying drawings formmovemen ing part of this application, wherein like characshafts 18 and 19 of the'respectwe 170115 12 and ters denote corresponding parts in the several ,ifi gi zfig fig f igfi i giii ig g iti igggg views and in which-- 7 such as a crank 22 for rotating it, although the Flgllle 1 luustrates Plan Y of film shaft of course may be powerdriven, as feed rolls ing means and those portions of the cutting of this type e frequently driven 50 mechanism exposed beyond the area occupied by Each frame member is provided with a trans the drawing rolls; versely disposed stud 23 located near its upper V Figure 2 illustrates an underneath plan view edge and a plate 24 has an aperture 25 fitting thereof; on the stud so that the said plate 'is oscillatably Figure 3 illustrates an enlarged sectional view mounted. Each-plate has a curved slot 26 form- 55 on the line 31-3013 Fig. 1; 1 ing a clearance for the shafts 18 and 19inorder no that said plate may move, as will presently appear. Each plate has a segmental rack 27 engaged by a pinion 28, and each pinion is fixed on a shaft 29 that may be partially turned by a crank 30, al though other means may be provided for partially rotating the said shaft 29. The shaft is partially turned under the influence of a spring 31 after it has been operated to move the plates in one direction, the said spring serving to return the parts to normal position when the crank is released.

A knife or cutting blade 32 has its ends attached to each of the plates 24 and the plate is curved and the blade is likewise curved. A tapered filling member 33 is interposed between the blade and the plate and the taper of this filling member determines the pitch of the blade so that according to the taper of the filling member the blade may be set so that its cutting edge coacts "effectively with the coacting blade, as will presently appear. It is shown in the drawings that the blade occupies such a position in order that its cutting edge may be diagonal with respect to the shaft 19 under which it is located in the assembly.

The approximately stationary cutting blade 34 is mounted so that its cutting edge is parallel with the shaft 19 and its ends are attached to cheek pieces or plates 35 and as these elements are duplicated at each end of the blade a description of one of them will suffice as a disclosure for an understanding of the invention by one skilled in the art. A blade 34 has a curved projection 36 at the end toward which the cutting edge of the movable blade converges and the projection acts as a cam to facilitate the positioning of the cutting edges of the blades during the initial cutting action. It has been stated that the blade 34 is approximately stationary and it is except for the fact that when the movable blade cams over the approximately stationary blade, it imparts a slight vertical movement to the cheek piece at that end of the blade having the projection 36. Hence, as the movable blade travels across the cutting edge of the approximately stationary blade, the pressure of the movable blade is such that it slightly elevates the cheek piece as the cutting edges of the blades overlap at the end of the blade remote from the movement at the other end, the greater movement occurring at the end of the blade having the projection.

In order to permit the movement of the cheek pieces in the manner stated, each cheek pieceis provided with a slot 37 producing a clearance to permit the cheek piece to move transversely of the shaft 18, and the edge of each cheek piece has a recess as at 38 affording a clearance for the shaft 19. Each cheek piece is further providedwith a slot 39 which receives a stud 23. A screw 40 serves to limit the downward movement of each cheek piece and each cheek piece is held at a limit of its downward movement by a member whose head 41 bears against the stud 23 and it is yieldingly held in this position by the spring 42. When the camming portion of the extension of the movable blade engages the blade carried by the cheek piece, the said cheek piece is slightly elevated against the action of the spring 42 and, when the blades disengage, the said spring 42 serves to return the parts to normal position.

I claim:

1. In a cutting machine, frame members, driven shafts journaled in the frame members, means for driving the shafts, paper feeding rollers on the shafts, plates having segmental racks oscillatably mounted at the inner sides of the said frame members, a blade carried by the said plates, a shaft having pinions engaging the racks of the plates and operative to oscillate the said plates, plates yieldingly supported in operative relation to the first mentioned plates, and a blade on the second mentioned plates adapted to coact with the first mentioned blade for cutting paper moved into the zone of action of said blades by the rollers.

2. In a cutting machine, frame members, studs on said members extending inwardly, a plate oscillatably mounted on each stud, a rack on the edge of each plate, suitably rotated pinions engaging the racks for oscillating the plates, other plates having slots to receive the aforesaid studs, adjustable means in the said plates engaging the studs for supporting the plates and opposed yieldable members in said slots engaging the studs and permitting movement of the plates in one direction longitudinally of the slot, coacting blades on the aforesaid plates, means on one of the blades for engaging the other blade for effecting movement of the second mentioned plates longitudinally of the slots of said plates, and means for delivering paper between the blades.

3. In a cutting machine, frame members, feed rollers having shafts journaled therein, plates oscillatably mounted at the .imier sides of said frame members, said plates each having a curved slot forming a clearance for the shafts of the feed rollers, means for oscillating the said plates, plates mounted at the inner sides of the first mentioned plates, the second mentioned plates having slots for the reception of a shaft of one of the feed rollers, the arrangement being such that each second mentioned plate is held against oscillation and afforded approximately vertical movement, each of said second mentioned plates having an additional slot, a stud on each frame member entering one of the said slots, means associated with each of the second mentioned plates coacting with its respective stud for holding the plate suspended, yieldable means engaging the said stud for holding each'plate normally depressed, and coacting blades on the first and second mentioned plates operative to cut paper and lift the second mentioned plates.

4. In a cutting machine, frame members, feed rollers having shafts journaled therein, plates oscillatably mounted at the inner sides of said frame members, said plates each having a curved slot forming a clearance for the shafts of the feed rollers, means for oscillating the said plates, plates mounted at the inner sides of the first mentioned plates and to one side of one of the feed rollers, means for supporting each of the second mentioned plates, each of said plates having a slot to receive the support, adjustable means for holding each plate on the support whereby the plate reciprocates on the support, each of said plates having a slot forming a clearance for receiving a shaft of one of the feed rollers, a blade carried by the second mentioned plates, means for oscillating the first mentioned plates, a blade carried by the first mentioned plates and movable into operative relation with the first mentioned blade, and means associated with the said blades for imparting reciprocating motion to the second mentioned plates as the blades 'are'operating.

'5. In a cutting machine, frame-members, adjustable bearings on the frame members, feed rollers having shafts journaled 'inthe'said bearings, plates oscillatably mounted at the inner sides of said frame members, said plates each having a curved slot forming a clearance for the shafts of the feed rollers, means for oscillating the said plates, plates mounted at the inner sides of the first mentioned plates and to one side of one of the feed rollers, means for supporting each of the second mentioned plates, each of said plates having a slot to receive the support, adjustable means for holding each plate on the support whereby the plate reciprocates on the support, each of said plates having a slot forming a clearance for receiving a shaft of one of the feed rollers, a blade carried by the second mentioned plates, means for oscillating the first mentioned plate, a blade carried by the first mentioned plates and movable into operative relation with the first mentioned blade, and means associated with the said blades for imparting reciprocating motion to the second mentioned plates as the knives are operating,

6. In a cutting machine, frame members, feed rollers having shafts journaled therein, plates oscillatably mounted at the inner sides of said frame members, said plates each having a curved slot forming a clearance for the shafts of the feed rollers, means for oscillating the said plates, plates mounted at the inner sides of the first mentioned plates and to one side of one of the feed rollers, means for supporting each of the second mentioned plates, each of said plates having a slot to receive the support, adjustable means for holding each plate on the support whereby the plate reciprocates on the support, each of said plates having a slot forming a clearance for receiving a shaft of one of the feed rollers, a blade carried by the second mentioned plates, means for oscillating the first mentioned plates, a blade carried by the first mentioned plates and movable into operative relation with the first mentioned blade, and a camming projection on one of the blades adapted to engage the other blade and operative to elevate the second mentioned plates as the blades coact during the cutting operation.

7. In a cutter, blade carrying members, a blade secured thereto, means for mounting the said members whereby they are yieldingly supported for movement in a direction substantially at right angles to the width of the blade, oscillatably mounted members each having a rack on its edge, pinions engaging the racks and operative to oscillate the said members, a blade carried by the last mentioned members coacting with the first mentioned blade, and means on one blade engaged by the other blade coacting to impart the aforesaid movement to the first mentioned members.

8. In a paper cutter, members having curved edges, a blade attached to the curved edges of the said members, each of said members having a slot radial to the blade, a support for each of the said members projecting into the slot, a member adjustable edgewise of each member and projecting into the slot for engaging the support of the member, yieldable means engaging the support at a location substantially opposite that engaged by the adjustable member, oscillatably mounted plates each having a segmental rack on its edge, means engaging the racks for imparting oscillatory motion to the said plates, a blade diagonally positioned with respect to the cutting edge of the first mentioned blade and attached to the said plates, and means associated with the aforesaid blades for lifting the first mentioned members against the action of the aforesaid yieldable means whereby the cutting edges of the blades are afforded clearance for passing each other.

9. In a cutter, blade carrying members having curved edges, a transversely curved blade secured to the curved edge of each member, means for yieldingly supporting the members whereby they move in a direction transversely of the cutting edge of the blade, oscillatably mounted members having curved edges, means for oscillating the said members, tapered fillers on the curved edges of the last mentioned members, a transversely curved blade applied to said fillers and attached to the said members, and means associated with the blades for causing the oscillatably mounted blade to lift the coacting blade during the cutting operation.

10. In a cutter, blade carrying members, a blade secured thereto, means for mounting the said members whereby they are yieldingly supported for movement in a direction substantially at right angles to the width of the blade, oscillatably mounted members each having a rack on its edge, pinions engaging the racks and operative to oscillate the said members, a blade carried by the last mentioned members coacting with the first mentioned blade, tapered filling members interposed between the blade and the members carrying it, and means associated with the said blades whereby they coact to impart the aforesaid movement to the first mentioned members.

GEORGE C. BEIDLER. 

